Shoretel 7 on Windows 2000
Did you need to run the Shoretel version 7 client on Windows 2000? Shoretel has dropped support for Windows 2000 clients while at the same time is not certifying Shoretel versions less than 7 to work with the latest necessary Microsoft server security patches. So if you to were forced to update to version 7 while you still have some Windows 2000 Workstations in use, this trick may help you out.
The Shoretel client upgrade is blocked with a message about NETWORK SERVICE not available. Simply create a user called NETWORK SERVICE and then run the client upgrade again. It worked for me on ST7 v.12.5.8107.0.